[AstroPy] fits coordinate system keyword

[Paul Kuin]

Actually, one of the basic tenets of FITS is to be completely backward
compatible, so any keyword that was valid in the past is valid now. So that
warning is also inaccurate. If it was standard, it still is, and ever will
be.



On Mon, Oct 5, 2015 at 5:25 PM, Erik Bray <embray at stsci.edu> wrote:

> On 10/05/2015 12:17 PM, Paul Kuin wrote:
>
>>
>>
>> I am getting very annoyed of the warning that keeps popping up
>>
>> WARNING: FITSFixedWarning: RADECSYS= 'FK5' / default
>> RADECSYS is non-standard, use RADESYSa. [astropy.wcs.wcs]
>>
>> I'm not sure when the FITS standard changed, but MOST legacy fits files
>> (I use)
>> will have the RADECSYS keyword. It works, and I do not see why someone
>> felt the
>> need to keep this warning being popped up all the time.
>>
>
> Probably as a warning to remind authors of new files that they shouldn't
> be using that keyword.  I don't know that it necessarily needs to be
> displayed every time reading in a WCS except maybe to head off cases of
> ambiguity.  But I don't know this particular issue well enough to be sure
> if the warning is appropriate in all cases or not.
>
> I think that by default it should be off.
>>
>> Since you all probably think it should be there, I would like to know how
>> to
>> turn it off ?  any suggestion on how to do that?
>>
>
> http://docs.astropy.org/en/stable/warnings.html
>
>
> Erik
>
> _______________________________________________
> AstroPy mailing list
> AstroPy at scipy.org
> https://mail.scipy.org/mailman/listinfo/astropy
>



-- 

* * * * * * * * http://www.mssl.ucl.ac.uk/~npmk/ * * * *
Dr. N.P.M. Kuin      (n.kuin at ucl.ac.uk)
phone +44-(0)1483 (prefix) -204927 (work)
mobile +44(0)7806985366  skype ID: npkuin
Mullard Space Science Laboratory  – University College London  –
Holmbury St Mary – Dorking – Surrey RH5 6NT–  U.K.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/astropy/attachments/20151005/fb50620e/attachment.html>